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3.Plant Kingdom
medium
Angiospermic plants are characterised by
$I.$ double fertilisation $II.$ triploid endosperm $III.$ Diploid endosperm
Choose the correct option from the following regarding above statements
A
$I$ and $II$ are correct
B
$I$ and $III$ are correct
C
$II$ and $III$ are correct
D
$I$, $II$ and $III$ are correct
Solution
Double fertilisation is characteristic feature of angiosperms. It was discovered by $SG$ Nawaschin in $1898.$ In double fertilisation, one male gamete fused with ovum to form diploid zygote and the second male gamete fused with diploid secondary nucleus to form the triploid primary endosperm nucleus, which develops into endosperm. The endosperm provides, nutrition to the developing embryo
Standard 11
Biology
